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# Copyright (c) 2019 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from typing import Optional, TYPE_CHECKING
from PyQt6.QtCore import QObject, pyqtSlot
from UM.i18n import i18nCatalog
from cura.Machines.ContainerTree import ContainerTree
if TYPE_CHECKING:
from cura.CuraApplication import CuraApplication
#
# This manager provides (convenience) functions to the Machine Settings Dialog QML to update certain machine settings.
#
class MachineSettingsManager(QObject):
def __init__(self, application: "CuraApplication", parent: Optional["QObject"] = None) -> None:
super().__init__(parent)
self._i18n_catalog = i18nCatalog("cura")
self._application = application
# Force rebuilding the build volume by reloading the global container stack. This is a bit of a hack, but it seems
# quite enough.
@pyqtSlot()
def forceUpdate(self) -> None:
self._application.getMachineManager().globalContainerChanged.emit()
# Function for the Machine Settings panel (QML) to update the compatible material diameter after a user has changed
# an extruder's compatible material diameter. This ensures that after the modification, changes can be notified
# and updated right away.
@pyqtSlot(int)
def updateMaterialForDiameter(self, extruder_position: int) -> None:
# Updates the material container to a material that matches the material diameter set for the printer
self._application.getMachineManager().updateMaterialWithVariant(str(extruder_position))
@pyqtSlot(int)
def setMachineExtruderCount(self, extruder_count: int) -> None:
# Note: this method was in this class before, but since it's quite generic and other plugins also need it
# it was moved to the machine manager instead. Now this method just calls the machine manager.
self._application.getMachineManager().setActiveMachineExtruderCount(extruder_count)
# Function for the Machine Settings panel (QML) to update after the user changes "Number of Extruders".
#
# fieldOfView: The Ultimaker 2 family (not 2+) does not have materials in Cura by default, because the material is
# to be set on the printer. But when switching to Marlin flavor, the printer firmware can not change/insert material
# settings on the fly so they need to be configured in Cura. So when switching between gcode flavors, materials may
# need to be enabled/disabled.
@pyqtSlot()
def updateHasMaterialsMetadata(self):
machine_manager = self._application.getMachineManager()
global_stack = machine_manager.activeMachine
definition = global_stack.definition
if definition.getProperty("machine_gcode_flavor", "value") != "UltiGCode" or definition.getMetaDataEntry(
"has_materials", False):
# In other words: only continue for the UM2 (extended), but not for the UM2+
return
has_materials = global_stack.getProperty("machine_gcode_flavor", "value") != "UltiGCode"
material_node = None
if has_materials:
global_stack.setMetaDataEntry("has_materials", True)
else:
# The metadata entry is stored in an ini, and ini files are parsed as strings only.
# Because any non-empty string evaluates to a boolean True, we have to remove the entry to make it False.
if "has_materials" in global_stack.getMetaData():
global_stack.removeMetaDataEntry("has_materials")
# set materials
for position, extruder in enumerate(global_stack.extruderList):
if has_materials:
approximate_diameter = extruder.getApproximateMaterialDiameter()
variant_node = ContainerTree.getInstance().machines[global_stack.definition.getId()].variants[extruder.variant.getName()]
material_node = variant_node.preferredMaterial(approximate_diameter)
machine_manager.setMaterial(str(position), material_node)
self.forceUpdate()
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